Can you find the hidden animal in the picture below?

What number comes next in this sequence:
7 8 5 5 3 4 4 _

In the addition below, all digits have been replaced by letters. Equal letters represent equal digits and different letters represent different digits.
ABCABA
BBDCAA
ABEABB
ABDBAA
------- +
AAFGBDH
What does the complete addition look like in digits?

John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?

I cannot talk, but I always reply when spoken to. What am I?

I am sure no one can have two things for dinner. what are they?

What has 88 keys?

How can you take 2 from 5 and leave 4?

You are trapped in a room with two doors. One leads to certain death and the other leads to freedom. You don't know which is which.
There are two robots guarding the doors. They will let you choose one door but upon doing so you must go through it.
You can, however, ask one robot one question. The problem is one robot always tells the truth, the other always lies and you don't know which is which.
What is the question you ask?

Find the next number in the series below

21 32 54 87 131 ?